Why are rhyming couplets an effective way to tell this Civil War story?

Rhyming couplets are pairs of lines whose ending words rhyme. That repeated sound links the lines and can give the poem a lively, forward-moving rhythm, making A, “They make the poem seem active by connecting lines through sound,” the best answer. The other choices focus on ideas or conflicts, which are not effects of rhyme itself.

AI-written and checked against the verified answer.